From the cage to the big screen, the world's greatest Mixed Martial Arts Champions come together for the first time in a major motion picture. When an MMA world champion is lured into the illegal world of underground cage fighting by an elusive promoter, he quickly realizes that the only way out is to kill or to be killed.

Barely being able to make ends meet and doing everything he can possibly do to cover his ill son's growing medical bills, Hector Chavez turns to his fighting roots in the underbelly of LA. His amateur Mixed Martial Arts videos go viral grabbing the attention of the world's top MMA federation. Hector is then given a dream come true opportunity to go up against the MMA World Champion; a vicious fighter whose last opponent is in critical condition in the same hospital as his son. Hector is faced with a real do-or -die situation and must risk it all so his son can have the surgery he needs to survive.